This view shows enzymes only for those organisms listed below, in the list of taxa known to possess the
pathway.
If an enzyme name is shown in bold, there is experimental evidence for this enzymatic activity.

A limited number of species of Gram-negative bacteria, all in the family Enterobacteriaceae, utilize unusual sugars, derivatives of 3,6-dideoxyhexose, as an O-antigen of their lipopolysaccharides. These sugars are the dominant antigenic determinants in the membranes of these organisms.